<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 13:20:00.000"
URSICode="SAA0K"
StationName="SaoLuis"
GeoLatitude="-2.6"
GeoLongitude="315.8"
Source="Ionosonde"
SourceType="DPS-4"
ScalerType="auto">
<SystemInfo UMLStationID="903">
<FrequencyStepping StartFrequency="1.0" StopFrequency="12.0">
<LinearStepping Step="0.05" Units="MHz" />
</FrequencyStepping>
<RangeStepping StartRange="80.0" StopRange="1360.0" >
<LinearStepping Step="5.0" Units="km" />
</RangeStepping>
<AutoScaler Name="Artist5" Version="500200" ArtistFlags="2 2 0 0 0 0 0 0 0 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 45% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<ContactPerson>
<Name>Dr. Mangalathayil Ali Abdu</Name>
<Affiliation>INPE, Division of Aeronomy</Affiliation>
<Address>Av dos Astronautas, 1.758 Jd. Granja - CEP: 12227-010 Sao Jose dos Campos - SP Brasil</Address>
<Email>maabdu@dae.inpe.br</Email>
</ContactPerson>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.10.22 (295) 13:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.40" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-19.74" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="-1.0" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202629510221320009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.667" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.738" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="325.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="325.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="90" Val="110.000" Name="hmE" Units="km" QL="/" DL="/" />
<URSI ID="83" Val="20.000" Name="yE" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="9.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="467.054" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Custom Name="dlt foF2" Val="0.000" Description="Adjustment to the scaled foF2 during profile inversion" Units="MHz" />
<Modeled Name="foEp" Val="3.326" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.331" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="335.656" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="230.973" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.208" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="135.498" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="44.397" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="76.344" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="175.460" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.320" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="82">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
6.35 6.4 6.45 6.5 6.55 6.6 6.65 6.7 6.75 6.8 6.85 6.9 6.95 7.0 7.05 7.1 7.15 7.2 7.25 7.3 7.35 7.4 7.45 7.5 7.55 7.6 7.65 7.7 7.75 7.8 7.85 7.9 7.95 8.0 8.05 8.1 8.15 8.2 8.25 8.3 8.35 8.4 8.45 8.5 8.55 8.6 8.65 8.7 8.75 8.8 8.85 8.9 8.95 9.0 9.05 9.1 9.15 9.2 9.25 9.3 9.35 9.4 9.45 9.5 9.55 9.6 9.65 9.7 9.75 9.8 9.85 9.9 9.95 10.0 10.05 10.1 10.15 10.2 10.25 10.3 10.35 10.4
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
325.000 325.000 325.000 330.000 330.000 335.000 335.000 335.000 335.000 340.000 340.000 340.000 345.000 350.000 350.000 350.000 350.000 350.000 350.000 350.000 355.000 355.000 355.000 360.000 360.000 360.000 365.000 365.000 365.000 370.000 370.000 370.000 375.000 375.000 375.000 377.514 380.028 382.542 385.056 387.570 390.083 392.597 395.111 397.625 400.139 402.653 405.167 407.681 410.195 412.709 415.223 417.737 420.250 422.764 425.278 427.792 430.306 432.820 435.334 437.848 440.362 442.876 445.390 447.904 450.417 452.525 454.845 457.411 460.265 463.458 467.054 471.134 475.805 480.000 490.000 495.000 505.000 515.000 530.000 545.000 570.000 604.700
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 54 54 63 66 66 69 69 66 66 69 69 66 54 57 63 66 66 66 60 69 66 66 66 69 69 63 69 66 66 69 69 69 72 72 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-0.390625 0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -1.171875 2.734375 1.953125 0.390625 -0.390625 1.171875 1.953125 1.171875 -0.390625 1.171875 1.953125 -0.390625 -0.390625 -2.734375 -1.953125 -1.171875 0.390625 2.734375 1.953125 -0.390625 -0.390625 -1.953125 -2.734375 2.734375 0.390625 -1.171875 2.734375 2.734375 0.390625 -0.390625 -0.390625 -0.390625 1.171875 2.734375 -0.390625 -0.390625 1.953125 -0.390625 -0.390625 -0.390625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="188">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.493 90.0 95.0 100.0 105.0 110.0 111.815 113.63 115.0 115.445 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 335.656 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.238 2.878 3.218 3.326 3.203 3.203 3.296 3.326 3.502 3.699 3.894 4.085 4.273 4.456 4.635 4.811 4.984 5.155 5.323 5.49 5.656 5.822 5.987 6.151 6.316 6.482 6.648 6.814 6.982 7.151 7.321 7.492 7.665 7.838 8.014 8.19 8.368 8.546 8.725 8.903 9.08 9.256 9.427 9.594 9.753 9.902 10.039 10.158 10.257 10.332 10.381 10.4 10.4 10.397 10.385 10.366 10.338 10.304 10.262 10.214 10.16 10.1 10.034 9.963 9.888 9.808 9.723 9.635 9.544 9.449 9.351 9.25 9.147 9.042 8.935 8.826 8.715 8.603 8.49 8.376 8.262 8.146 8.031 7.915 7.798 7.682 7.566 7.45 7.334 7.219 7.104 6.99 6.876 6.763 6.651 6.54 6.43 6.321 6.212 6.105 5.999 5.894 5.791 5.688 5.587 5.487 5.388 5.291 5.194 5.099 5.006 4.914 4.823 4.733 4.645 4.558 4.473 4.389 4.306 4.224 4.144 4.065 3.988 3.911 3.836 3.763 3.69 3.619 3.549 3.48 3.413 3.346 3.281 3.217 3.154 3.092 3.032 2.972 2.914 2.857 2.8 2.745 2.691 2.638 2.586 2.534 2.484 2.435 2.386 2.339 2.293 2.247 2.202 2.158 2.115 2.073 2.032 1.991 1.951 1.912 1.874 1.836 1.8 1.764 1.728 1.694 1.66 1.626 1.594 1.562 1.53 1.499 1.469 1.44 1.411 1.382 1.355 1.327 1.301 1.274 1.249 1.224 1.199 1.175 1.151 1.128

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.326" PeakHeight="110.0" Num="3" Error="0.0">
-30.455 13.083 -3.135
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.326" EndFrequency="10.4" PeakHeight="335.656" Num="5" zHalfNm="230.973" Error="2.073">
-194.535 -39.718 15.212 -0.416 -0.754
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.445" Depth="0.123"/>
<TopsideChapman PeakHeight="335.656" PeakDensity="1341935.5" PeakScaleHeight="76.344" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
